package net.minecraft.world.gen;

import java.util.Random;
import net.minecraft.block.state.IBlockState;
import net.minecraft.init.Blocks;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;
import net.minecraft.world.chunk.ChunkPrimer;

public class MapGenCavesHell extends MapGenBase {
	protected void func_180705_a(long p_180705_1_, int p_180705_3_, int p_180705_4_, ChunkPrimer p_180705_5_,
			double p_180705_6_, double p_180705_8_, double p_180705_10_) {
		this.func_180704_a(p_180705_1_, p_180705_3_, p_180705_4_, p_180705_5_, p_180705_6_, p_180705_8_, p_180705_10_,
				1.0F + this.rand.nextFloat() * 6.0F, 0.0F, 0.0F, -1, -1, 0.5D);
	}

	protected void func_180704_a(long p_180704_1_, int p_180704_3_, int p_180704_4_, ChunkPrimer p_180704_5_,
			double p_180704_6_, double p_180704_8_, double p_180704_10_, float p_180704_12_, float p_180704_13_,
			float p_180704_14_, int p_180704_15_, int p_180704_16_, double p_180704_17_) {
		double d0 = (double) (p_180704_3_ * 16 + 8);
		double d1 = (double) (p_180704_4_ * 16 + 8);
		float f = 0.0F;
		float f1 = 0.0F;
		Random random = new Random(p_180704_1_);

		if (p_180704_16_ <= 0) {
			int i = this.range * 16 - 16;
			p_180704_16_ = i - random.nextInt(i / 4);
		}

		boolean flag1 = false;

		if (p_180704_15_ == -1) {
			p_180704_15_ = p_180704_16_ / 2;
			flag1 = true;
		}

		int j = random.nextInt(p_180704_16_ / 2) + p_180704_16_ / 4;

		for (boolean flag = random.nextInt(6) == 0; p_180704_15_ < p_180704_16_; ++p_180704_15_) {
			double d2 = 1.5D + (double) (MathHelper.sin((float) p_180704_15_ * (float) Math.PI / (float) p_180704_16_)
					* p_180704_12_ * 1.0F);
			double d3 = d2 * p_180704_17_;
			float f2 = MathHelper.cos(p_180704_14_);
			float f3 = MathHelper.sin(p_180704_14_);
			p_180704_6_ += (double) (MathHelper.cos(p_180704_13_) * f2);
			p_180704_8_ += (double) f3;
			p_180704_10_ += (double) (MathHelper.sin(p_180704_13_) * f2);

			if (flag) {
				p_180704_14_ = p_180704_14_ * 0.92F;
			} else {
				p_180704_14_ = p_180704_14_ * 0.7F;
			}

			p_180704_14_ = p_180704_14_ + f1 * 0.1F;
			p_180704_13_ += f * 0.1F;
			f1 = f1 * 0.9F;
			f = f * 0.75F;
			f1 = f1 + (random.nextFloat() - random.nextFloat()) * random.nextFloat() * 2.0F;
			f = f + (random.nextFloat() - random.nextFloat()) * random.nextFloat() * 4.0F;

			if (!flag1 && p_180704_15_ == j && p_180704_12_ > 1.0F) {
				this.func_180704_a(random.nextLong(), p_180704_3_, p_180704_4_, p_180704_5_, p_180704_6_, p_180704_8_,
						p_180704_10_, random.nextFloat() * 0.5F + 0.5F, p_180704_13_ - ((float) Math.PI / 2F),
						p_180704_14_ / 3.0F, p_180704_15_, p_180704_16_, 1.0D);
				this.func_180704_a(random.nextLong(), p_180704_3_, p_180704_4_, p_180704_5_, p_180704_6_, p_180704_8_,
						p_180704_10_, random.nextFloat() * 0.5F + 0.5F, p_180704_13_ + ((float) Math.PI / 2F),
						p_180704_14_ / 3.0F, p_180704_15_, p_180704_16_, 1.0D);
				return;
			}

			if (flag1 || random.nextInt(4) != 0) {
				double d4 = p_180704_6_ - d0;
				double d5 = p_180704_10_ - d1;
				double d6 = (double) (p_180704_16_ - p_180704_15_);
				double d7 = (double) (p_180704_12_ + 2.0F + 16.0F);

				if (d4 * d4 + d5 * d5 - d6 * d6 > d7 * d7) {
					return;
				}

				if (p_180704_6_ >= d0 - 16.0D - d2 * 2.0D && p_180704_10_ >= d1 - 16.0D - d2 * 2.0D
						&& p_180704_6_ <= d0 + 16.0D + d2 * 2.0D && p_180704_10_ <= d1 + 16.0D + d2 * 2.0D) {
					int j2 = MathHelper.floor_double(p_180704_6_ - d2) - p_180704_3_ * 16 - 1;
					int k = MathHelper.floor_double(p_180704_6_ + d2) - p_180704_3_ * 16 + 1;
					int k2 = MathHelper.floor_double(p_180704_8_ - d3) - 1;
					int l = MathHelper.floor_double(p_180704_8_ + d3) + 1;
					int l2 = MathHelper.floor_double(p_180704_10_ - d2) - p_180704_4_ * 16 - 1;
					int i1 = MathHelper.floor_double(p_180704_10_ + d2) - p_180704_4_ * 16 + 1;

					if (j2 < 0) {
						j2 = 0;
					}

					if (k > 16) {
						k = 16;
					}

					if (k2 < 1) {
						k2 = 1;
					}

					if (l > 120) {
						l = 120;
					}

					if (l2 < 0) {
						l2 = 0;
					}

					if (i1 > 16) {
						i1 = 16;
					}

					boolean flag2 = false;

					for (int j1 = j2; !flag2 && j1 < k; ++j1) {
						for (int k1 = l2; !flag2 && k1 < i1; ++k1) {
							for (int l1 = l + 1; !flag2 && l1 >= k2 - 1; --l1) {
								if (l1 >= 0 && l1 < 128) {
									IBlockState iblockstate = p_180704_5_.getBlockState(j1, l1, k1);

									if (iblockstate.getBlock() == Blocks.flowing_lava
											|| iblockstate.getBlock() == Blocks.lava) {
										flag2 = true;
									}

									if (l1 != k2 - 1 && j1 != j2 && j1 != k - 1 && k1 != l2 && k1 != i1 - 1) {
										l1 = k2;
									}
								}
							}
						}
					}

					if (!flag2) {
						for (int i3 = j2; i3 < k; ++i3) {
							double d10 = ((double) (i3 + p_180704_3_ * 16) + 0.5D - p_180704_6_) / d2;

							for (int j3 = l2; j3 < i1; ++j3) {
								double d8 = ((double) (j3 + p_180704_4_ * 16) + 0.5D - p_180704_10_) / d2;

								for (int i2 = l; i2 > k2; --i2) {
									double d9 = ((double) (i2 - 1) + 0.5D - p_180704_8_) / d3;

									if (d9 > -0.7D && d10 * d10 + d9 * d9 + d8 * d8 < 1.0D) {
										IBlockState iblockstate1 = p_180704_5_.getBlockState(i3, i2, j3);

										if (iblockstate1.getBlock() == Blocks.netherrack
												|| iblockstate1.getBlock() == Blocks.dirt
												|| iblockstate1.getBlock() == Blocks.grass) {
											p_180704_5_.setBlockState(i3, i2, j3, Blocks.air.getDefaultState());
										}
									}
								}
							}
						}

						if (flag1) {
							break;
						}
					}
				}
			}
		}
	}

	/**
	 * Recursively called by generate()
	 */
	protected void recursiveGenerate(World worldIn, int chunkX, int chunkZ, int p_180701_4_, int p_180701_5_,
			ChunkPrimer chunkPrimerIn) {
		int i = this.rand.nextInt(this.rand.nextInt(this.rand.nextInt(10) + 1) + 1);

		if (this.rand.nextInt(5) != 0) {
			i = 0;
		}

		for (int j = 0; j < i; ++j) {
			double d0 = (double) (chunkX * 16 + this.rand.nextInt(16));
			double d1 = (double) this.rand.nextInt(128);
			double d2 = (double) (chunkZ * 16 + this.rand.nextInt(16));
			int k = 1;

			if (this.rand.nextInt(4) == 0) {
				this.func_180705_a(this.rand.nextLong(), p_180701_4_, p_180701_5_, chunkPrimerIn, d0, d1, d2);
				k += this.rand.nextInt(4);
			}

			for (int l = 0; l < k; ++l) {
				float f = this.rand.nextFloat() * (float) Math.PI * 2.0F;
				float f1 = (this.rand.nextFloat() - 0.5F) * 2.0F / 8.0F;
				float f2 = this.rand.nextFloat() * 2.0F + this.rand.nextFloat();
				this.func_180704_a(this.rand.nextLong(), p_180701_4_, p_180701_5_, chunkPrimerIn, d0, d1, d2, f2 * 2.0F,
						f, f1, 0, 0, 0.5D);
			}
		}
	}
}
